Superradiant and Aharonov-Bohm effect for the quantum ring exciton

Details Superradiant and Aharonov-Bohm effect for the quantum ring exciton Superradiant and Aharonov-Bohm effect for the quantum ring exciton

2003-12-26

arxiv.org/abs/cond-mat/0312644v3

Solid State Communications 130, 491 (2004)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 2 figures, to appear in Solid State Communications (2004)

Scientific paper

10.1016/j.ssc.2004.02.051

The Aharonov-Bohm and superradiant effect on the redaitive decay rate of an
exciton in a quantum ring is studied. With the increasing of ring radius, the
exciton decay rate is enhanced by superradiance, while the amplitude of AB
oscillation is decreased. The competition between these two effects is shown
explicitly and may be observable in time-resolved exeriments.

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